Patents by Inventor Ville Viikari
Ville Viikari has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11923587Abstract: A transmission line for transmitting radiofrequency range current between a first conductive element and a second conductive element, the transmission line comprising a signal current line and at least one return current line, the signal current line and the return current line(s) extending in parallel. Each current line comprises at least one first segment and at least one second segment. Each first segment is partially aligned with at least one adjacent second segment, aligned segments being separated by a first dielectric gap, and each aligned first segment and second segment forming a capacitive coupling across the first dielectric gap. This solution enables a transmission line which provides only small capacitive loading onto its surroundings, and which therefore can extend, e.g., through an antenna element without significantly affecting the performance of the antenna element.Type: GrantFiled: February 25, 2019Date of Patent: March 5, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Alexander Khripkov, Ville Viikari, Resti Montoya Moreno, Juha Ala-Laurinaho, Janne Ilvonen, Jari Kristian Van Wonterghem
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Publication number: 20240014566Abstract: The present disclosure relates to an antenna array including an integral antenna element structure mounted on a substrate. The integral antenna element structure includes a first set of antenna elements and a second set of antenna elements. Each antenna element including a first body and an adjacent second body. The second body is branched into a first leg and a second leg, wherein a transition pin forms an integral part with said first leg. The first set, and second sets of antenna elements are arranged such that the first body and the second body of each adjacent antenna element form a common tapered structure.Type: ApplicationFiled: August 19, 2021Publication date: January 11, 2024Inventors: Henri KÄHKÖNEN, Juha ALA-LAURINAHO, Ville VIIKARI
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Publication number: 20240006772Abstract: The present disclosure relates to an antenna arrangement including a first antenna configured to operate within a first frequency band and a second antenna configured to operate within a second frequency band. The first frequency band is higher than the second frequency band. Further, the second antenna is at least partly arranged within an illumination-field of the first antenna. Furthermore, the second antenna includes a dipole structure segmented into a plurality of electrically conductive sections, wherein each electrically conductive section is coupled to an adjacent electrically conductive section by a reactive load section.Type: ApplicationFiled: November 23, 2021Publication date: January 4, 2024Inventors: Bengt SVENSSON, Anders HÖÖK, Ville VIIKARI, Juha ALA-LAURINAHO, Mikko LEINO
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Publication number: 20230378654Abstract: An antenna arrangement comprising a dielectric element, at least one conductive element, an antenna radiator, and a plurality of exciter elements. The antenna radiator arranged at a first surface of the dielectric element and at a distance from the conductive element such that a gap is formed between the antenna radiator and a first surface of the conductive element. The exciter elements extend at least partially through a gap and are arranged on or adjacent to the conductive element. The antenna radiator may comprise a conductive material and be printed, sintered, painted, laminated, or deposited onto the first surface of the dielectric element, or molded into the dielectric element.Type: ApplicationFiled: July 31, 2023Publication date: November 23, 2023Inventors: Janne Ilvonen, Rasmus Luomaniemi, Anu Lehtovuori, Ville Viikari, Alexander Khripkov, Joonas Krogerus, Riku Kormilainen
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Publication number: 20230118728Abstract: An antenna arrangement for a communication device comprises a top conductive patch comprising at least a first coupling point and a second coupling point coupled to one or more feed circuits carrying a radio frequency (RF) signal to or from the top conductive patch. The RF signal has a first phase in the first coupling point and a second phase in the second coupling point. A first slot extends in the conductive patch between the first coupling point and the second coupling point. The antenna arrangement according enables a desired current distribution to be realized in the antenna in a controlled and systematic manner. A communication device includes such an antenna arrangement.Type: ApplicationFiled: October 27, 2022Publication date: April 20, 2023Inventors: Janne Ilvonen, Jari-Matti Hannula, Riku Kormilainen, Anu Lehtovuori, Rasmus Luomaniemi, Ville Viikari, Alexander Khripkov, Joonas Krogerus
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Publication number: 20220158318Abstract: A transmission line for transmitting radiofrequency range current between a first conductive element and a second conductive element, the transmission line comprising a signal current line and at least one return current line, the signal current line and the return current line(s) extending in parallel. Each current line comprises at least one first segment and at least one second segment. Each first segment is partially aligned with at least one adjacent second segment, aligned segments being separated by a first dielectric gap, and each aligned first segment and second segment forming a capacitive coupling across the first dielectric gap. This solution enables a transmission line which provides only small capacitive loading onto its surroundings, and which therefore can extend, e.g., through an antenna element without significantly affecting the performance of the antenna element.Type: ApplicationFiled: February 25, 2019Publication date: May 19, 2022Inventors: Alexander KHRIPKOV, Ville VIIKARI, Resti MONTOYA MORENO, Juha ALA-LAURINAHO, Janne ILVONEN, Jari Kristian VAN WONTERGHEM
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Publication number: 20220102874Abstract: Embodiments of the present invention provide a dual-polarization antenna array that includes: a conductive structure having an aperture pattern including at least one first aperture and at least one second aperture, the first aperture(s) being directly interconnected with at least one second aperture. At least one first coupling element is connected to a first antenna feed line to excite a first electrical field having a first polarization. At least one second coupling element is connected to a second antenna feed line to excite a second electrical field having a second polarization. Each first coupling element is at least partially juxtaposed with one first aperture, allowing said first electrical field to be transmitted and/or received through said first aperture. Each second coupling element being at least partially juxtaposed with one second aperture, allowing said second electrical field to be transmitted and/or received through said second aperture.Type: ApplicationFiled: January 30, 2019Publication date: March 31, 2022Inventors: Alexander KHRIPKOV, Ville VIIKARI, Resti MONTOYA MRENO, Juha ALA-LAURINAHO, Janne ILVONEN
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Patent number: 10879969Abstract: A device comprises antennas and a signal processor, and each antenna comprises antenna elements. The signal processor is configured to: receive an input signal for a multiple-input multiple-output (MIMO) operation; generate complex weights; generate feed signals based on the input signal and the complex weights; and provide the feed signals to the antenna elements so that the MIMO operation uses at least two antenna elements from two different antennas.Type: GrantFiled: August 26, 2019Date of Patent: December 29, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Jari-Matti Hannula, Ville Viikari, Jari Holopainen
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Patent number: 10673537Abstract: The invention relates to a sensor and a system for measuring pressure, variation in sound pressure, a magnetic field, acceleration, vibration, or the composition of a gas. The sensor comprises an ultrasound transmitter, a cavity, and a passive sensor element. In accordance with the invention the sensor includes antenna means for receiving radio frequency signals (f1, f2), and connecting means connecting the antenna to the ultrasound transmitter for using the radio frequency signals for providing energy for driving the ultrasound transmitter.Type: GrantFiled: December 7, 2011Date of Patent: June 2, 2020Assignee: Teknologian tutkimuskeskus VTT OyInventors: Heikki Seppa, Teuvo Sillanpaa, Ville Viikari
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Patent number: 10658747Abstract: An antenna arrangement is described. The antenna arrangement comprises an antenna array that includes a first antenna element having a first feed point, and a second antenna element having a second feed point. The antenna arrangement further comprises a signal processing device configured to receive an input signal (Sin), obtain a first complex weight (w1), obtain a second complex weight (w2), generate a first feed signal (a1) based on the input signal (Sin) and the first complex weight (w1), generate a second feed signal (a2) based on the input signal (Sin) and the second complex weight (w2), provide the first feed signal (a1) to the first feed point, and provide the second feed signal (a2) to the second feed point so as to control the frequency characteristic of the antenna array. A method for such an antenna arrangement is also described.Type: GrantFiled: October 16, 2018Date of Patent: May 19, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Jari-Matti Hannula, Ville Viikari, Risto Valkonen, Janne Ilvonen
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Publication number: 20190379436Abstract: A device comprises antennas and a signal processor, and each antenna comprises antenna elements. The signal processor is configured to: receive an input signal for a multiple-input multiple-output (MIMO) operation; generate complex weights; generate feed signals based on the input signal and the complex weights; and provide the feed signals to the antenna elements so that the MIMO operation uses at least two antenna elements from two different antennas.Type: ApplicationFiled: August 26, 2019Publication date: December 12, 2019Inventors: Jari-Matti Hannula, Ville Viikari, Jari Holopainen
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Patent number: 10461973Abstract: In a RFID sensor tag, a sensing element is connected to an oscillator such that an oscillation frequency of the oscillator is dependent on a value of a predetermined variable sensed by the sensing element. The oscillation frequency of the oscillator is a harmonic multiple N of a modulation frequency required for a backscattering modulator. A frequency divider is arranged at the output of the oscillator to produce the modulation frequency from the oscillation frequency. The oscillator can be designed and dimensioned such that a high sensitivity is obtained with all sensor values, and the desired modulation frequency is derived resulting oscillation frequency by selecting a suitable division ratio N.Type: GrantFiled: June 2, 2016Date of Patent: October 29, 2019Assignee: METSO OYJInventors: Joona Nikunen, Ville Viikari
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Patent number: 10210445Abstract: An RFID system includes a radio frequency identification (RFID) reader and at least one passive RFID sensor tag. A backscattered radio frequency signal from the passive RFID tag is modulated with an oscillation frequency which is dependent on a value of a quantity sensed by a sensing element. The RFID reader converts converting the oscillation frequency of the backscattered signal into an actual value of the sensed quantity based on predetermined sensor configuration information of the passive RFID sensor tag. The sensor configuration information includes information on a sensor element or sensor elements available in the passive RFID sensor tag, and particularly information how to convert the oscillation frequency of the backscattered signal into actual values of the quantity sensed by the respective sensing element.Type: GrantFiled: September 2, 2015Date of Patent: February 19, 2019Assignee: METSO FLOW CONTROL OYInventors: Joona Nikunen, Ville Viikari
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Publication number: 20190051981Abstract: An antenna arrangement is described. The antenna arrangement comprises an antenna array that includes a first antenna element having a first feed point, and a second antenna element having a second feed point. The antenna arrangement further comprises a signal processing device configured to receive an input signal (Sin), obtain a first complex weight (w1), obtain a second complex weight (w2), generate a first feed signal (a1) based on the input signal (Sin) and the first complex weight (w1), generate a second feed signal (a2) based on the input signal (Sin) and the second complex weight (w2), provide the first feed signal (a1) to the first feed point, and provide the second feed signal (a2) to the second feed point so as to control the frequency characteristic of the antenna array. A method for such an antenna arrangement is also described.Type: ApplicationFiled: October 16, 2018Publication date: February 14, 2019Inventors: Jari-Matti HANNULA, Ville VIIKARI, Risto VALKONEN, Janne ILVONEN
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Patent number: 10145729Abstract: The present invention related to a new passive wireless sensor platform which is based on the intermodulation communication principle. The platform may utilize a quartz crystal or other mechanical resonator. Additionally, the platform allows for a narrow bandwidth and/or ID-code of a sensor. Certain embodiments enable high frequencies and large read-out distances. It facilitates a generic sensor element and can thus be used to monitor virtually any quantity. Additionally, it offers a means to realize a wireless passive sensor using MEMS sensor technology.Type: GrantFiled: May 22, 2013Date of Patent: December 4, 2018Assignee: Teknologian tutkimuskeskus VTT OyInventors: Ville Viikari, Heikki Seppä
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Patent number: 10140566Abstract: The RFID sensor tag may include normal RFID circuits and functions (such as rectifier, modulator, logic and memory) as well as a resonator-based clock generator or oscillator. The oscillator is a stable resonator-based oscillator having a high Q value. The resonator-based oscillator is loaded with a sensor element which tunes the oscillation frequency, i.e. the oscillation frequency is sensitive to the measured quantity. Thereby, a passive RFID sensor with a resonator-based oscillator and a sensor element is provided, wherein the oscillation frequency can be made dependent on the sensor element if sensing is required. The concept is compatible for existing RFID tags and can enable the possibility to measure external quantities with-out reducing the read-out distance.Type: GrantFiled: December 30, 2013Date of Patent: November 27, 2018Assignee: METSO OYJInventor: Ville Viikari
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Publication number: 20180131542Abstract: In a RFID sensor tag, a sensing element is connected to an oscillator such that an oscillation frequency of the oscillator is dependent on a value of a predetermined variable sensed by the sensing element. The oscillation frequency of the oscillator is a harmonic multiple N of a modulation frequency required for a backscattering modulator. A frequency divider is arranged at the output of the oscillator to produce the modulation frequency from the oscillation frequency. The oscillator can be designed and dimensioned such that a high sensitivity is obtained with all sensor values, and the desired modulation frequency is derived resulting oscillation frequency by selecting a suitable division ratio N.Type: ApplicationFiled: June 2, 2016Publication date: May 10, 2018Applicant: METSO FLOW CONTROL OYInventors: Joona NIKUNEN, Ville VIIKARI
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Publication number: 20170286820Abstract: An RFID system includes a radio frequency identification (RFID) reader and at least one passive RFID sensor tag. A backscattered radio frequency signal from the passive RFID tag is modulated with an oscillation frequency which is dependent on a value of a quantity sensed by a sensing element. The RFID reader converts converting the oscillation frequency of the backscattered signal into an actual value of the sensed quantity based on predetermined sensor configuration information of the passive RFID sensor tag. The sensor configuration information includes information on a sensor element or sensor elements available in the passive RFID sensor tag, and particularly information how to convert the oscillation frequency of the backscattered signal into actual values of the quantity sensed by the respective sensing element.Type: ApplicationFiled: September 2, 2015Publication date: October 5, 2017Applicant: METSO FLOW CONTROL OYInventors: Joona NIKUNEN, Ville VIIKARI
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Patent number: 9779342Abstract: A radio frequency identification (RFID) reader sequentially carries out inventory rounds with passive RFID sensor tags. Each RFID sensor tag has at least one sensing element arranged to sense a predetermined quantity. The reader reads one value of the predetermined quantity based on a backscattering modulation frequency used by the passive RFID sensor tag during each inventory round and releases the RFID sensor tag prior to reading next value of the predetermined quantity based on a backscattering modulation frequency used by the passive RFID sensor tag during a subsequent inventory round. If the passive RFID sensor comprises two or more sensing elements having different sensor characteristics, the reader reads one of the sensing elements of the passive RFID tag during one inventory round and releases the passive RFID sensor tag prior to reading another one of the sensing elements of the passive RFID sensor tag during a subsequent inventory round.Type: GrantFiled: September 2, 2015Date of Patent: October 3, 2017Assignee: METSO FLOW CONTROL OYInventors: Joona Nikunen, Ville Viikari
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Publication number: 20170228626Abstract: A radio frequency identification (RFID) reader sequentially carries out inventory rounds with passive RFID sensor tags. Each RFID sensor tag has at least one sensing element arranged to sense a predetermined quantity. The reader reads one value of the predetermined quantity based on a backscattering modulation frequency used by the passive RFID sensor tag during each inventory round and releases the RFID sensor tag prior to reading next value of the predetermined quantity based on a backscattering modulation frequency used by the passive RFID sensor tag during a subsequent inventory round. If the passive RFID sensor comprises two or more sensing elements having different sensor characteristics, the reader reads one of the sensing elements of the passive RFID tag during one inventory round and releases the passive RFID sensor tag prior to reading another one of the sensing elements of the passive RFID sensor tag during a subsequent inventory round.Type: ApplicationFiled: September 2, 2015Publication date: August 10, 2017Applicant: METSO FLOW CONTROL OYInventors: Joona NIKUNEN, Ville VIIKARI